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Night latch

Type of keyed door lock

Summary

Type of keyed door lock

A night latch (or night-latch or nightlatch) is a lock that is fitted on the surface of a door; it is operated from the exterior side of the door by a key and from the interior (i.e. "secure") side of the door by a knob.

Overview

Night latches are usually rim locks and are available as deadlocking (automatically locks once shut) and non-deadlocking versions.

Historically, such locks were intended for use at night-time, hence the name. The keyless egress that they offer is a valuable fire safety measure, but may be a security risk if breaking a glass panel (usually in the door) or a nearby small window allows an intruder to reach the knob inside and open the door from the outside.

References

Sources

References

  1. "Definition of NIGHT LATCH".
  2. Hasluck, Paul N.. (2011). "The Handyman's Guide: Essential Woodworking Tools and Techniques". Skyhorse Publishing, Inc..
  3. Mitchell, John Ames. (2018). "Life". Life.
  4. Jones, Tony L.. (2003). "Court Security: A Guide for Post 9-11 Environments". Charles C Thomas Publisher.
  5. (2013). "Sturgis' Illustrated Dictionary of Architecture and Building: An Unabridged Reprint of the 1901–2 Edition". Courier Corporation.
Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

locks-(security-device)
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